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Hitachi Develops 100GB Blu-ray Disc Compatible With Existing Drives
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Written by Daniel   
Friday, 05 October 2007 10:44

Hitachi Develops 100GB Blu-ray Disc Compatible With Existing Drives
Marcus Yam (Blog) - October 5, 2007 8:15 AM

DailyTech 

 100GB on a single Blu-ray Disc that will work with today's machines, promises Hitachi

Throughout the life of the format, DVD has been primarily limited to at most two layers, keeping the format at a maximum storage space of under 9GB. The new high-definition formats, however, appear to have taken a page from hard disk drives when it comes at adding additional storage.
Just as how adding additional platters inside a hard disk drive provides more storage, optical media makers are finding ways to stack layers of readable surface inside a polymer disc to increase capacity. Hitachi revealed this week at CEATEC JAPAN 2007 that it has successfully developed a quad-layer Blu-ray Disc that is capable of storing 100GB of data.

 
The concept multi-layer discs is practiced by many other media labs, but Hitachi claims that its quad-layer technology would be compatible with existing Blu-ray Disc drives after a firmware update. Prior developments of greater than dual layer discs have required special hardware to read the new media.

Hitachi is now working on improving the signal quality of its quad-layer technology so that it will be ready for market. The company also said that it is working on an eight-layer variant of the technology, which would yield a Blu-ray Disc capable of holding 200GB.

Although no new hardware may be required to read the additional layers of Hitachi’s Blu-ray Disc, it is still unclear what costs, if any, would be added onto the manufacturing side of the equation. Should expensive equipment be required to manufacture the discs, movie studios may opt to release their titles across two Blu-ray Discs rather than cram movie and special feature data onto a single disc.      More   Comments in the forums

 
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